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Interlaken

$188+ Cheap flights from Seattle (SEA) to Interlaken, Switzerland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — ZRH
Apr 15 — Apr 221
Tue 4/15
Tue 4/22
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Interlaken are usually found in November or January, booked 56 days in advance, depart on a Sunday or Thursday and return on a Wednesday

Cheap flight deals from Seattle to Interlaken

Keep the following information in mind while searching for Seattle to Interlaken flight deals. Data was last updated April 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$487
(eDestinos)

One-way from

$188
(oojo)

Popular in

June

Cheapest in

November

Average price

$626
Provider with most accurate pricing for Seattle/Tacoma Intl-Zurich flight deals.
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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Zurich flights.
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From Seattle/Tacoma Intl to Interlaken
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One-way flight from Seattle/Tacoma Intl to Interlaken
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Highest demand for flights based on searches. 17% potential increase in price ($143 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Seattle to Interlaken

Cheapest flights from Seattle to Interlaken
Explore the most affordable flight options available from Seattle to Interlaken. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 10, 2025.

This eDestinos deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/246:45 pmSEA - ZRH
1 stop16h 25mAer Lingus
Wed 9/311:15 amZRH - SEA
1 stop14h 44mAer Lingus
Deal found 4/9$487
This Expedia deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/205:05 pmSEA - ZRH
1 stop13h 40mCondor
Wed 4/238:05 amZRH - SEA
1 stop16h 00mCondor
Deal found 4/8$510
This oojo deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/63:45 pmSEA - ZRH
1 stop12h 20mIcelandair
Thu 6/122:00 pmZRH - SEA
1 stop15h 40mIcelandair
Deal found 4/9$512
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1011:33 pmSEA - ZRH
1 stop24h 17mAmerican Airlines
Fri 8/2211:45 amZRH - SEA
1 stop16h 41mAmerican Airlines
Deal found 4/9$541
This Delta deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:23 amSEA - ZRH
1 stop18h 12mDelta
Wed 4/3010:10 amZRH - SEA
1 stop21h 12mDelta
Deal found 4/8$561
This American Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/307:55 amSEA - ZRH
2 stops15h 55mMultiple Airlines
Mon 10/139:45 pmZRH - SEA
1 stop22h 25mMultiple Airlines
Deal found 4/9$581
This Air Canada deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/15:45 amSEA - ZRH
2 stops19h 40mAir Canada
Sun 12/1412:45 pmZRH - SEA
2 stops30h 05mAir Canada
Deal found 4/8$582
This Gurufare deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/23:47 pmSEA - ZRH
2 stops21h 48mBritish Airways
Wed 9/177:15 amZRH - SEA
1 stop20h 05mBritish Airways
Deal found 4/9$593
This SWISS deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/14:25 pmSEA - ZRH
Nonstop10h 20mSWISS
Wed 9/241:30 pmZRH - SEA
1 stop14h 06mSWISS
Deal found 4/9$596
This Finnair deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/85:40 pmSEA - ZRH
1 stop15h 40mFinnair
Tue 5/1310:50 amZRH - SEA
2 stops21h 19mFinnair
Deal found 4/9$611
This United Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/252:07 pmSEA - ZRH
2 stops32h 58mUnited Airlines
Thu 10/21:25 pmZRH - SEA
1 stop30h 49mUnited Airlines
Deal found 4/9$637
This deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/282:15 pmSEA - ZRH
1 stop14h 50mLufthansa
Mon 5/58:15 amZRH - SEA
1 stop13h 10mLufthansa
Deal found 4/8$691

Cheapflights Fare Finder

Customize your flight search to find flights from Seattle to Interlaken that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2025.
Use the filters below to find and compare flights from Seattle to Interlaken that are best for you.

Fly from

Seattle

Fly to

Interlaken

Route

Depart

Return

Price

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 8/24

6:45 pm-8:10 pm

1 stop16h 25m

Zurich

Wed 9/3

11:15 am-4:59 pm

1 stop14h 44m

$487

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 4/20

5:05 pm-3:45 pm

1 stop13h 40m

Zurich

Wed 4/23

8:05 am-3:05 pm

1 stop16h 00m

$510

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Fri 6/6

3:45 pm-1:05 pm

1 stop12h 20m

Zurich

Thu 6/12

2:00 pm-8:40 pm

1 stop15h 40m

$512

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Sun 8/10

11:33 pm-8:50 am

1 stop24h 17m

Zurich

Fri 8/22

11:45 am-7:26 pm

1 stop16h 41m

$541

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 4/23

7:23 am-10:35 am

1 stop18h 12m

Zurich

Wed 4/30

10:10 am-10:22 pm

1 stop21h 12m

$561

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 9/30

7:55 am-8:50 am

2 stops15h 55m

Zurich

Mon 10/13

9:45 pm-11:10 am

1 stop22h 25m

$581

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Tue 9/2

3:47 pm-10:35 pm

2 stops21h 48m

Zurich

Wed 9/17

7:15 am-6:20 pm

1 stop20h 05m

$593

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Mon 9/1

4:25 pm-11:45 am

Nonstop10h 20m

Zurich

Wed 9/24

1:30 pm-6:36 pm

1 stop14h 06m

$596

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Thu 5/8

5:40 pm-6:20 pm

1 stop15h 40m

Zurich

Tue 5/13

10:50 am-11:09 pm

2 stops21h 19m

$611

SeattleZurich

SEA - ZRH

SEAZRH

Seattle/Tacoma Intl

Wed 4/30

6:00 am-8:40 am

2 stops41h 40m

Zurich

Fri 5/9

12:40 pm-10:13 pm

2 stops42h 33m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 24 results
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Best time to book a flight from Seattle to Interlaken

Have a flexible travel schedule? Discover the best time to fly to Interlaken from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Interlaken

How far ahead should I book a flight from Seattle to Interlaken?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Interlaken. Price data was last updated on April 4, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Interlaken, you should look to book at least 56 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Interlaken?

Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,274). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to IN9?

Find hourly flight availability from Seattle to Interlaken. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 10, 2025.

When flying from Seattle to Interlaken, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

What is the cheapest day to fly from Seattle to Interlaken?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Interlaken. Price data was last updated on April 14, 2024.

Travelers seeking maximum savings on their Seattle to Interlaken flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Interlaken by month

Plan your trip to Interlaken by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Interlaken ranges from 2.5 - 5.0 inches per month. June is typically the wettest month, when rainfall can reach 5.0 in. January is typically the driest time to visit Interlaken when rainfall is around 2.5 in.

Temperature in Interlaken by month

Plan your trip to Interlaken by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Interlaken, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

Reviews of airlines servicing Interlaken

Get insights into the airlines that provide service to Interlaken. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Interlaken. Reviews last updated April 10, 2025.
Delta
8.0
Very good
7,906 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,906 reviews
Delta
8.0
Very good
7,906 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,906 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
SWISS
7.5
Good
1,574 reviews
Delta
8.0
Very good
7,906 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,634 reviews
Delta
8.0
Very good
7,906 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,906 reviews

Food

7.3

Comfort

8.0

Crew

8.5

Overall

8.0

Boarding

8.2

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Interlaken. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Interlaken?

    Located just 11.4 mi from the city center, Seattle/Tacoma Intl is the airport most travelers will use when flying to Interlaken from Seattle. Booking flights from Seattle/Tacoma Intl (SEA) to Interlaken should be relatively easy as there are 0 daily outbound flights to Interlaken from 12 different airlines.

  • What are the cheapest airlines to fly from Seattle to Interlaken one-way?

    $188 is the cheapest one-way deal found within the past few days, from Icelandair. You may also be able to find cheap deals on TAP AIR PORTUGAL and Condor, with prices starting from $322 and $385, respectively.

  • What are the cheapest flights from Seattle to Interlaken?

    On average you can expect to pay $1,999 for a flight from Seattle to Interlaken. The cheapest flight overall is $430 while the most popular route, (Seattle/Tacoma Intl - Zurich) is currently priced at $417.

  • Can I find deals for flights from Seattle to Interlaken that include hotel bookings?

    Yes. In addition to deals on Seattle to Interlaken flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Interlaken?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Interlaken.

  • Can I find deals for business class flights from Seattle to Interlaken?

    Yes. Cheapflights offers flight deals from Seattle to Interlaken by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Interlaken?

    Currently, November is the cheapest month in which you can book a flight from Seattle to Interlaken (average of $637). Flying from Seattle to Interlaken in June is currently the most expensive (average of $1,274). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 10 airlines flying from Seattle to Interlaken

Discover the top 10 airlines that operate flights from Seattle to Interlaken. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$407Average$665FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$443Average$666FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$467Average$619FlexibilityNo cancel feeOn-time71%
LufthansaCheapest$491Average$780FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$502Average$846FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$513Average$711FlexibilityNo cancel feeOn-time69%
DeltaCheapest$523Average$827FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$555Average$799FlexibilityNo cancel feeOn-time75%
FinnairCheapest$559Average$688FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$560Average$740FlexibilityNo cancel feeOn-time67%

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